ADUM7440ARQZ Analog Devices Inc, ADUM7440ARQZ Datasheet

IC ISOLATOR DGTL QUAD 16QSOP

ADUM7440ARQZ

Manufacturer Part Number
ADUM7440ARQZ
Description
IC ISOLATOR DGTL QUAD 16QSOP
Manufacturer
Analog Devices Inc
Series
iCoupler®r
Datasheet

Specifications of ADUM7440ARQZ

Propagation Delay
75ns
Inputs - Side 1/side 2
4/0
Number Of Channels
4
Isolation Rating
1000Vrms
Voltage - Supply
3 V ~ 5.5 V
Data Rate
1Mbps
Output Type
Logic
Package / Case
16-QSOP
Operating Temperature
-40°C ~ 105°C
No. Of Channels
4
Supply Current
4.3mA
Supply Voltage Range
3V To 5.5V
Digital Ic Case Style
QSOP
No. Of Pins
16
Operating Temperature Range
-40°C To +105°C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADUM7440ARQZ
Manufacturer:
ADI
Quantity:
15
Part Number:
ADUM7440ARQZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Small, 16-lead QSOP
1000 V rms isolation rating
Safety and regulatory approvals
Low power operation
Bidirectional communication
Up to 25 Mbps data rate (NRZ)
3 V/5 V level translation
High temperature operation: 105°C
High common-mode transient immunity: >15 kV/ μs
APPLICATIONS
General-purpose, multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceivers
Industrial field bus isolation
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
V
V
GND
GND
DD1A
DD1B
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UL recognition
CSA Component Acceptance Notice #5A (pending)
5 V operation
3.3 V operation
IB
IA
IC
ID
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1
UL 1577: 1000 V rms for 1 minute
2.25 mA per channel maximum @ 0 Mbps to 1 Mbps
11.5 mA per channel maximum @ 25 Mbps
1.5 mA per channel maximum @ 0 Mbps to 1 Mbps
8.25 mA per channel maximum @ 25 Mbps
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ADuM7440
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Figure 1. ADuM7440
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FUNCTIONAL BLOCK DIAGRAMS
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GND
GND
DD1A
DD1B
1 kV RMS Quad-Channel Digital Isolators
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IC
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ADuM7441
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Figure 2. ADuM7441
ADuM7440/ADuM7441/ADuM7442
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
GENERAL DESCRIPTION
The ADuM744x
Analog Devices, Inc., iCoupler® technology. Combining high
speed CMOS and monolithic air core transformer technologies,
these isolation components provide outstanding performance
characteristics superior to the alternatives, such as optocoupler
devices and other integrated couplers.
The ADuM744x family of quad 1 kV digital isolation devices
is packaged in a small 16-lead QSOP. While most 4-channel
isolators come in 16-lead wide SOIC packages, the ADuM744x
frees almost 70% of board space and yet can still withstand high
isolation voltage and meet regulatory requirements such as UL
and CSA standards (pending). In addition to the space savings,
the ADuM744x offers a lower price than 2.5 kV or 5 kV
isolators where only functional isolation is needed.
This family, like many Analog Devices isolators, offers very
low power consumption, consuming one-tenth to one-sixth
the power of comparable isolators at comparable data rates up
to 25 Mbps. Despite the low power consumption, all models of
the ADuM744x provide low pulse width distortion (< 5 ns for
C grade). In addition, every model has an input glitch filter to
protect against extraneous noise disturbances.
The ADuM744x isolators provide four independent isolation
channels in a variety of channel configurations and two data
rates (see the Ordering Guide) up to 25 Mbps. All models
operate with the supply voltage on either side ranging from
3.0 V to 5.5 V, providing compatibility with lower voltage
systems as well as enabling voltage translation functionality
across the isolation barrier. All products also have an output
default high logic state in the absence of the input power.
1
pending.
Protected by U.S. Patents 5,952,849, 6,873,065 and 7,075,329. Other patents
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GND
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DD2A
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ID
DD2B
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are 4-channel digital isolators based on the
©2009–2011 Analog Devices, Inc. All rights reserved.
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V
GND
GND
DD1A
DD1B
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OC
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IB
IA
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ADuM7442
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Figure 3. ADuM7442
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www.analog.com
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DD2B
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Related parts for ADUM7440ARQZ

ADUM7440ARQZ Summary of contents

Page 1

... V 5 ENCODE DECODE DECODE ENCODE DD1B DD2B GND 9 GND Figure 2. ADuM7441 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 1 are 4-channel digital isolators based on the DD1A ADuM7442 GND ENCODE DECODE ENCODE DECODE DECODE ENCODE DECODE ENCODE 11 ...

Page 2

ADuM7440/ADuM7441/ADuM7442 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams ............................................................. 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics—5 V Operation................................ 3 Electrical Characteristics—3.3 V Operation ............................ 4 Electrical Characteristics—Mixed 5 ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS—5 V OPERATION All typical specifications are 25° operation range of 4.5 V ≤ V ≤ 5.5 V, 4.5 V ≤ V DD1 are tested with pF, and CMOS signal ...

Page 4

ADuM7440/ADuM7441/ADuM7442 ELECTRICAL CHARACTERISTICS—3.3 V OPERATION All typical specifications are 25° operation range of 3.0 V ≤ V ≤ 3.6 V, 3.0 V ≤ V DD1 are tested with and CMOS signal ...

Page 5

ELECTRICAL CHARACTERISTICS—MIXED 5 V/3.3 V OPERATION All typical specifications are 25° mended operation range of 4.5 V ≤ V DD1 specifications are tested with and CMOS signal levels, unless otherwise noted. ...

Page 6

ADuM7440/ADuM7441/ADuM7442 ELECTRICAL CHARACTERISTICS—MIXED 3.3 V/5 V OPERATION All typical specifications are 25° mended operation range of 3.0 V ≤ V DD1 specifications are tested with and CMOS signal levels, unless otherwise ...

Page 7

PACKAGE CHARACTERISTICS Table 13. Parameter Resistance (Input-to-Output) 1 Capacitance (Input-to-Output) 1 Input Capacitance 2 IC Junction-to-Ambient Thermal Resistance 1 The device is considered a 2-terminal device: Pin 1 through Pin 8 are shorted together and Pin 9 through Pin 16 ...

Page 8

ADuM7440/ADuM7441/ADuM7442 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 17. Parameter Rating Storage Temperature (T ) Range −65°C to +150°C ST Ambient Operating Temperature (T ) −40°C to +105°C A Supply Voltages ( −0.5 ...

Page 9

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS Table 20. ADuM7440 Pin Function Descriptions Pin No. Mnemonic Description 1 V Supply Voltage A for Isolator Side 1 (3 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a ...

Page 10

ADuM7440/ADuM7441/ADuM7442 Table 21. ADuM7441 Pin Function Descriptions Pin No. Mnemonic Description 1 V Supply Voltage A for Isolator Side 1 (3 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a ceramic DD1A bypass capacitor ...

Page 11

Table 22. ADuM7442 Pin Function Descriptions Pin No. Mnemonic Description 1 V Supply Voltage A for Isolator Side 1 (3 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a ceramic DD1A bypass capacitor of ...

Page 12

ADuM7440/ADuM7441/ADuM7442 TYPICAL PERFORMANCE CHARACTERISTICS DATA RATE (Mbps) Figure 8. Typical Supply Current per Input Channel vs. Data Rate for 5 V and 3 V Operation ...

Page 13

DATA RATE (Mbps) Figure 14. Typical ADuM7441 V Supply Current vs. Data Rate DD2 for 5 V and 3 V Operation ADuM7440/ADuM7441/ADuM7442 ...

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... ADuM7440/ADuM7441/ADuM7442 APPLICATIONS INFORMATION PC BOARD LAYOUT The ADuM744x digital isolators require no external interface circuitry for the logic interfaces. Power supply bypassing is strongly recommended at the input and output supply pins (see Figure 16). A total of four bypass capacitors should be connected between Pin 1 and Pin 2 for V ...

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MAGNETIC FIELD FREQUENCY (Hz) Figure 18. Maximum Allowable External Magnetic Flux Density For example magnetic field frequency of 1 MHz, the maximum allowable magnetic field of 0.5 ...

Page 16

ADuM7440/ADuM7441/ADuM7442 The insulation lifetime of the ADuM744x depends on the voltage waveform type imposed across the isolation barrier. The iCoupler insulation structure degrades at different rates depending on whether the waveform is bipolar ac, unipolar ac, or dc. Figure 20, ...

Page 17

... PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. ORDERING GUIDE Number Number of Inputs, of Inputs, Model 1 V Side V Side DD1 DD2 ADuM7440ARQZ 4 0 ADuM7440ARQZ-RL7 4 0 ADuM7440CRQZ 4 0 ADuM7440CRQZ-RL7 4 0 ADuM7441ARQZ 3 1 ADuM7441ARQZ-RL7 3 1 ADuM7441CRQZ 3 1 ...

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ADuM7440/ADuM7441/ADuM7442 NOTES Rev Page ...

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NOTES ADuM7440/ADuM7441/ADuM7442 Rev Page ...

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ADuM7440/ADuM7441/ADuM7442 NOTES ©2009–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08340-0-2/11(B) Rev Page ...

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